Foot demonstrator



Nov. 27, 1928.

J. LELYVELD FOOT DEMoNsTRA'roR Filed May 6, 1926 nverr Jwepk [eff/veld Patented Nov. 27, 1928.

j j-oNiT'ED STATES g weze-n 'PATENT' erwies..

JOSEPH lLELY'EID, OF ROCKLAND, MASSACHUSETTS.

FOOT DEMONSTRATOR.

Application mea May c, 1926. sensi No. 107,019.

rEhis invention relates to a' foot deinenstrator including a transparent tread, adapted to support the weight of a standing person whose feet require observation by a skilled observer, the tread being supported horizontally, suitably raised aboveV a floor and presenting flat upper surface on which'the bottoni surfaces of the feet are pressed and flattened by the weight of the body, and a mirror located under the tread, in position to show a reflection of a foot 'bottoni bearing on the upper surface` of the tread, the object being' to enabln an observer to quickly and conveniently obtain desired information about a foot, by observing the extent to which the bottoni of the foot when pressed by the weight of the body against the tread, cornes in Contact with, and is flattened by the flat upper surface of the tread, the vfoot being bare, or covered onlyby a stocking. The eX- tent of the Contact between the foot bottoin and the tread revealed by the reflection, indicates what the observer desires to know.

The chief obi ect of the invention is to provide improved ineans for supporting the tread in such inanner that the bottoni surface of the tread mayl be conveniently cleaned, free access of light from the rooin containino the deinonstrator tothe bottoni surface `or the tread is permitted for the illumination of a footv bottonil thereon, and a reflection by the mirror isy visible frein a point wholly at one side of the deinonstrator, and Without obstruction by the tread and by the feet thereon.

Another object is to provide ineans for so adjust-ing the inirror relative to the tread, that the inirror anda reflection inade thereby may be viewed from a point at yone side of the demonstrator, and at any-desired elevation above the `lioor supporting' the saine, so that the observer inay use the deinonstrator when either standing or sitting.

y @f the accompanyingdrawings forming' a part of this Vspecification,--- v Figure l isa perspective view of afdeinonstrator einbodying'the invention. f

Figure 2 is a vertical sectionalrview.

Fioure 3 is a fraginentarysection on line 3-3 of Figure 2.

Figure 4 is an rend view, showing a modificatio p The saine reference characters indicate the sanie parts in all of the figures.

In the drawings, 12 designates a tread composed of a plate of thick plate glass,

'K in bearings' the inirrorvis pivotally.inounted on a horivrelative to the tread.

preferably of suflicient area to'enable both feet ofa standing person to bear on it the entire weight of the body being superimposed on the feet. The tread is supported horizontally, and suitably elevated labove a Hoor by an open frame, as hereinafter described,V i3 designates a niirror located under the tread and positioned to show a reflectionof the bottoni of a foot bearing on the tread. U5 Tl'ieinirror is preferably inclined relatively to the tread, 'so thatv the reflection may be seen froin a point at one side of the deinenstrator and above the tread, the arrangement being such that an observer occupying a position adjacent to the tread, may conveniently f study the reflection while sitting or standing beside the deinonstrator, this line of vision being wholly outside the tread, so that vision is not obstructed by the tread and by feetbearing`v thereon.

A portable structure embodying the invention inay be inade as indicated by F i gures l and 2. Said structure includes an open frame comprising standards 14, having socketed seats l5v at their upper ends, to which the corner portions of the tread are attached by screws 16, the standards extending downward vfrein the tread,-and being spaced apartto perinitthe'passage of light rections from the rooin con'tainingA the den'ionstrator to theV tread, for the illumina. tion of a foot bot-toni bearing on the tread, and tojperinit access to the bottoni surface ofthe tread for the cleaning of the saine. The 9o legs are arranged in pairs, as shown by Figure l, the standards of each pair being' spaced' apart, and each pair of standards being? spaced from the other. The standards Lof each pair are connected by a transverse tie rodv 17, located at the lower portion of the openings between standards.V The lower ends of the standardsinay beprovided with rubber tos v18, to bear on a floor f.

The it aineV 13 is` provided rwith NU trunnions 19, at its opposite ends, journaled i in two of the tie-rods 17, so that Zontnl aXis, and inay be variously inclined Any suitable ineans 195 niay be provided for preventing loose turning movements of the trunnions in their bearings, and thus maintaining the inirror at any desired inclination. In ythis instance, the

trunnions are screw-threaded at their outer end portionsr and provided with clamping' nuts 20, adapted to be set up against the tiein various di- 85,

rods 17 in which the trunnions are journaled, and thus trictionally oppose turning movements ot the trunnions.

As shown by Figure et, the tread may constitute the shelf member otan open bracketshaped trame ixed 'to a Wall w: and including spaced apart inclined standards E23, andthe mirror may be pivotally supported to turn on a horizontal axis by standards 2l, fixed toa floor f.v

In each ot the described embodiments the open trame permits Vaccess to the bottom surtace ot the tread tor cleaning, the passage ot light 'trom the room't-o the bottom surface ot the tread 'tor the illumination ot a toot bottom thereon, and observationot the mirror :trema` point Wholly at oneside ot the demonstrator, and without obstruction ot vision by the tread and by teet thereon. i 'ln each embodiment the pivotal mounting permits the mirror to be viewed between the stand ards trom different elevations above the 'door y, so that the observer may use the demonstrator conveniently when either, standing or sitting.

rlhe described provision tor illuminating` the bottom ot the tread and eet thereon, enables thel ldemonstrator to used by d yrlight and in a suliiciently lighted` room at night, Without a'. source ot light Within the demonstrator. 4

rllhe demonstrator may be used by podiatrists to determine the position and condition ojl the arches ot the feet when the teet support the Weight ot the body, and to indicate the type ot shoe required, in view ot the conditions indicated. lt permits a quick examination, sol that a large number ot subjects, such-,as police oiicers, army recruits, soldiers, ete., may be observed in a briet 1neriod, the subjects following each other on i the tread. Y y

The demonstrator may be used in shoe stores to indicate sizes ot shoes required, the Width ot the arches ot the feet, and the required vvidth ot the shank portions ot the shoes.

l claim: l

l. A toot demonstrator comprising a flat transparent tread, an'open trame surmounted by and horizontally supporting the tread, and mirror located under the tread and arranged to reflect a toot bottom bearing onV the tread, the trame' including tread'-support' aros extending downward trom the tread and spaced apart, to permit access tothe bottom f ot the tread for cleaning, and thepassage of light between the standards to the tread torA illumination ot a toot bottom thereon, the arrangement being such that a reflection by the mirror is visible trom. a point Wholly at one side ot the demonstrator, and Without obstruction by the tread and by feet thereon.

2. A toot demonstrator comprising` a at transparent' tread, anA open trame surmounted by and horizontally supporting the tread, a mirror located under the tread and arranged to reiecta toot bottom bearingon the tread, l

the trameincluding tread-supporting stand# ards extending downdard trom thel tread and'l spaced apart, topermit access to thel bottom. or the tread tor cleaning, andV thepassage'ot light between the standards to the trea'dtor. illumination ot a toot bottom thereon,the

arrangement being such that a. reflection' by the mirror is visible trom a point Wholly', at onel side ot the demonstrator, and Without' obstruction by the tread an'd'by feet thereon, and means' pivotally supporting the mirror' or a horizontal airis, so that it may be` adjusted to be viewed between the standards'trom .ditferent elevations above a floor supporting the demonstrator. ,v Y

3. A tootzdemonstrator comprising? afiiat transparent tread, an open trame surmounted. by and horizontally supporting the tread, and? a mirror located under the tread and arranged; to reflect a toot bottom bearingv on the tread, the trame including tWo pairsY oit standards; extending downivard trom the tread', the pairs and the standards oteach pair being-spaced apart, to permit the passage ot light in vari-f ous directions between. the standards to the tread, to permit access to the bottom ottfhe ot the openings therebetween, and meanspiv- 10o otally connecting the mirror withr the tie rods, so that the mirror may be adyusted on a horizontal axis to be viewed between the standards'tl'rom different elevations, above a;

door supporting the denionstrator, the ar-` ran gement being such that a ,re'llectionby'the mirror is visible trom a point Wlrollyat one side ot the demonstrator, and rWithout ob,- struction bythe tread and `by feet thereon;

ln testimony whereof l have affixed my` signature. Y JOSEPH LELYVELD, 

